In article <6a6190de-a834-4016-badf-74793930c711@m4g2000vbo.googlegroups.com>, WM <mueckenh@rz.fh-augsburg.de> wrote:
> On 18 Feb., 19:19, William Hughes <wpihug...@gmail.com> wrote: > > > > Is there a potentially infinite sequence, > > > > x, such that the nth FIS of x consists of > > > > n 1's > > 1 > 11 > 111 > ... > > > > Yes, of course > > > > Let y be a potentially infinite sequence > > where the nth FIS of y consists of a 1 followed > > by n-1 0's > > 1 > 10 > 100 > 1000 > ... > > > > > Are x and y coFIS? > > No. > > The following sequences however, > 1 > 12 > 123 > ... > > and > > 1 > 12 > 123 > ... > > are coFIS (as are the respective terms (lines)). > > Regards, WM